The Journal of Organic Chemistry

Generation of Methyl Radicals by Decomposition of Bibenzyl Compounds Containing α-Methoxy Substituents

GE Hartzell, ES Huyser

文献索引：Hartzell,G.E.; Huyser,E.S. Journal of Organic Chemistry, 1964 , vol. 29, p. 3341 - 3344

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被引用次数: 10

摘要

The bond strength of the normal carbon-carbon bond of 83-85 kcal./niole is sufficiently great to prohibit free-radical dissociation of ethane into methyl radicals, except at extremely high temperatures. This normal bond-dissociation energy is greatly reduced by the presence of bulky substituents surrounding the carboncarbon bond, as in the case of polyarylethanes.* In hexaphenylethane, for example, the dissociation energy is lowered to about 10-11 kcal. ...